reconcile rulegroups to prometheusrules (#5081)

reconcile rulegroups

Signed-off-by: junot <junotxiang@kubesphere.io>

cmd/controller-manager/app/controllers.go

@@ -31,6 +31,7 @@ import (
 	"sigs.k8s.io/kubefed/pkg/controller/util"
 
 	"kubesphere.io/kubesphere/cmd/controller-manager/app/options"
+	"kubesphere.io/kubesphere/pkg/controller/alerting"
 	"kubesphere.io/kubesphere/pkg/controller/application"
 	"kubesphere.io/kubesphere/pkg/controller/helm"
 	"kubesphere.io/kubesphere/pkg/controller/namespace"
@@ -540,6 +541,26 @@ func addAllControllers(mgr manager.Manager, client k8s.Client, informerFactory i
 		}
 	}
 
+	// controllers for alerting
+	alertingOptionsEnable := cmOptions.AlertingOptions != nil && (cmOptions.AlertingOptions.PrometheusEndpoint != "" || cmOptions.AlertingOptions.ThanosRulerEndpoint != "")
+	if alertingOptionsEnable {
+		// "rulegroup" controller
+		if cmOptions.IsControllerEnabled("rulegroup") {
+			rulegroupReconciler := &alerting.RuleGroupReconciler{}
+			addControllerWithSetup(mgr, "rulegroup", rulegroupReconciler)
+		}
+		// "clusterrulegroup" controller
+		if cmOptions.IsControllerEnabled("clusterrulegroup") {
+			clusterrulegroupReconciler := &alerting.ClusterRuleGroupReconciler{}
+			addControllerWithSetup(mgr, "clusterrulegroup", clusterrulegroupReconciler)
+		}
+		// "globalrulegroup" controller
+		if cmOptions.IsControllerEnabled("globalrulegroup") {
+			globalrulegroupReconciler := &alerting.GlobalRuleGroupReconciler{}
+			addControllerWithSetup(mgr, "globalrulegroup", globalrulegroupReconciler)
+		}
+	}
+
 	// log all controllers process result
 	for _, name := range allControllers {
 		if cmOptions.IsControllerEnabled(name) {

cmd/controller-manager/app/options/options.go

@@ -22,6 +22,7 @@ import (
 	"strings"
 	"time"
 
+	"kubesphere.io/kubesphere/pkg/simple/client/alerting"
 	"kubesphere.io/kubesphere/pkg/simple/client/monitoring/prometheus"
 
 	controllerconfig "kubesphere.io/kubesphere/pkg/apiserver/config"
@@ -60,6 +61,7 @@ type KubeSphereControllerManagerOptions struct {
 	ServiceMeshOptions    *servicemesh.Options
 	GatewayOptions        *gateway.Options
 	MonitoringOptions     *prometheus.Options
+	AlertingOptions       *alerting.Options
 	LeaderElect           bool
 	LeaderElection        *leaderelection.LeaderElectionConfig
 	WebhookCertDir        string
@@ -99,6 +101,7 @@ func NewKubeSphereControllerManagerOptions() *KubeSphereControllerManagerOptions
 		ServiceMeshOptions:    servicemesh.NewServiceMeshOptions(),
 		AuthenticationOptions: authentication.NewOptions(),
 		GatewayOptions:        gateway.NewGatewayOptions(),
+		AlertingOptions:       alerting.NewAlertingOptions(),
 		LeaderElection: &leaderelection.LeaderElectionConfig{
 			LeaseDuration: 30 * time.Second,
 			RenewDeadline: 15 * time.Second,
@@ -126,6 +129,7 @@ func (s *KubeSphereControllerManagerOptions) Flags(allControllerNameSelectors []
 	s.MultiClusterOptions.AddFlags(fss.FlagSet("multicluster"), s.MultiClusterOptions)
 	s.ServiceMeshOptions.AddFlags(fss.FlagSet("servicemesh"), s.ServiceMeshOptions)
 	s.GatewayOptions.AddFlags(fss.FlagSet("gateway"), s.GatewayOptions)
+	s.AlertingOptions.AddFlags(fss.FlagSet("alerting"), s.AlertingOptions)
 	fs := fss.FlagSet("leaderelection")
 	s.bindLeaderElectionFlags(s.LeaderElection, fs)
 
@@ -171,6 +175,7 @@ func (o *KubeSphereControllerManagerOptions) Validate(allControllerNameSelectors
 	errs = append(errs, o.NetworkOptions.Validate()...)
 	errs = append(errs, o.LdapOptions.Validate()...)
 	errs = append(errs, o.MultiClusterOptions.Validate()...)
+	errs = append(errs, o.AlertingOptions.Validate()...)
 
 	// genetic option: application-selector
 	if len(o.ApplicationSelector) != 0 {

cmd/controller-manager/app/server.go

@@ -67,6 +67,7 @@ func NewControllerManagerCommand() *cobra.Command {
 			ServiceMeshOptions:    conf.ServiceMeshOptions,
 			GatewayOptions:        conf.GatewayOptions,
 			MonitoringOptions:     conf.MonitoringOptions,
+			AlertingOptions:       conf.AlertingOptions,
 			LeaderElection:        s.LeaderElection,
 			LeaderElect:           s.LeaderElect,
 			WebhookCertDir:        s.WebhookCertDir,